Frequency response

In the present report, a novel concept of frequency response function (FRF) is introduced for piezoelectric beam. First, a model of Timoshenko beam bonded with a piezoelectric layer is established and used for deriving the conventional frequency response function acknowledged as mechanical frequency response function (MERF). Then, the output charge produced in the piezoelectric layer is calculated from the MFRF and therefore obtained frequency-dependent function is called electrical frequency response function (EFRF) for the integrated beam.

16p dianmotminh02 03-05-2024 3 1   Download

This paper presents a method for establishing the exact receptance function of a tapered axially functionally graded (AFG) beam with nonlinear ratios of properties using the Adomian method. In current papers, the Adomian method was applied for linearly tapered beams where the geometric series was used conveniently.

22p dianmotminh02 03-05-2024 3 2   Download

This paper considers the single-degree-of-freedom (SDOF) base excited isolation with piezoelectric energy harvesting. The purpose of this paper is to find how the energy harvesting circuit affects the fixed point of the frequency response.

6p vimarillynhewson 02-01-2024 7 4   Download

In the course of current research the procedure of obtaining of the piecewise linear vibration systems time and frequency responses have been developed. The method is partly analytical and partly numerical and is based on combining of linear solutions of different sections in a cycle of motion. In a row with the method of obtaining of the exact steady state time and frequency response, also it is provided sensitivity analysis of the vibration isolator.

86p runthenight07 01-03-2023 7 3   Download

Nghiên cứu "Mô hình đáp ứng tần số nhanh sử dụng hệ thống lưu trữ năng lượng trong các lưới điện đảo nhỏ" nhóm tác giả xây dựng một mô hình tận dụng ESS sẵn có trong lưới để cung cấp đáp ứng tần số nhanh (Fast Frequency Response – FFR) khi có sự cố. Mô hình này được ứng dụng đưa vào bài toán vận hành ngày tới để lập kế hoạch vận hành tối ưu sao cho ESS vừa đảm bảo được nhiệm vụ chính vừa có thể sẵn sàng cung cấp FFR bất cứ lúc nào.

7p senda222 22-02-2023 11 3   Download

Để giúp người kỹ sư có thể phân tích các phép thí nghiệm chẩn đoán nâng cao như Phân tích đáp ứng tần số (Frequency Response Analysis), Phân tích đáp ứng điện môi (Dielectric Frequency Response) hay Phóng điện cục bộ (Partial Discharge) ... ứng dụng cho đối tượng máy biến áp lực trong các trạm biến áp tăng áp của nhà máy điện, trạm trung gian và phân phối của lưới điện Việt Nam, bài viết giới thiệu tổng quan cấu trúc hình học và đặc tính vật liệu của thiết bị này

7p vijersey2711 03-03-2021 38 3   Download

The aims of this study are to develop and apply the method of using frequency response functions to diagnose cracks in elastic bar and beams structure. The contents of the study includes: building models of cracked elastic bar and 3 beams structure; studying the changes of oscillation parameters, mainly frequency response functions due to cracks.

27p larachdumlanat129 20-01-2021 21 6   Download

The theoretical analysis of MTSM has been developed to model and simulate the signature of the sensor responses at harmonic frequencies. The signatures of the evaporation- induced deposition processes were investigated by studying the effect of the thickness and stiffness of the medium.

13p bautroibinhyen17 13-02-2017 45 3   Download

This thesis aimed to apply the SEM for dynamic analysis of cracked beam subjected moving harmonic force in the frequency domain. Namely, the frequency response of a cracked beam subjected to moving harmonic force is obtained explicitly and examined in dependence upon the load and crack parameters. This task is acknowledged herein spectral analysis of cracked beam subjected to moving load.

27p change00 04-05-2016 51 4   Download

Lecture "Fundamentals of control systems - Chapter 4: System stability analysis system stability analysis" presentation of content: Stability concept, algebraic stability criteria, root locus method, frequency response analysis.

72p doinhugiobay_17 04-03-2016 68 6   Download

Lecture Control system design: Frequency response methods presents the following content: Frequency response plots, performance specifications in the frequency domain, frequency response methods using control system software.

52p youcanletgo_04 17-01-2016 53 1   Download

The purpose of Tài liệu Control engineering problems with solutions is to provide both worked examples and additional problems, with answers only. A major objective is to enable the reader to develop confidence in analytical work by showing how calculations can be checked using Matlab/Simulink.

200p hoangtuanthien 22-06-2015 44 6   Download

The need for operating circuits at increasingly higher speeds has always challenged designers. From radar and television systems in the 1940s to gigahertz microprocessors today, the demand for pushing circuits to higher frequencies has required a solid understanding of their speed limitations. In this chapter, we study the effects that limit the speed of transistors and circuits, identifying topologies that better lend themselves to high-frequency operation.

25p vanmanh1008 23-05-2013 64 3   Download

We study the ac-conductivity in linear response theory in the general framework of ergodic magnetic Schr¨dinger operators. For the Anderson model, o if the Fermi energy lies in the localization regime, we prove that the ac1 conductivity is bounded from above by Cν 2 (log ν )d+2 at small frequencies ν. This is to be compared to Mott’s formula, which predicts the leading term to 1 be Cν 2 (log ν )d+1 .

30p noel_noel 17-01-2013 54 7   Download

Khuyếch đại công suất âm thanh 4W-8W dùng TDA2005 Power Supply 9–18V at 1–2 A 8 W RMS/ch. at 2ohm 16V DC supply. 6W RMS/ch.at 4ohm 16V DC supply 4W RMS/ch.at 4ohm 12V DC supply 80 dBA. ~160 mV for full output ~31 dB maximum. C7-11=2200uF 16V C8-12=220uF 25V IC1=TDA2005 J1=2 Pole Terminal Block J2-3=3 Pole Terminal Block : MKð âm thanh 60W dùng TDA7294 Input sensitivity Input impedance Frequency response Slew rate Output power S/N ratio THD (40W into 8W) Power Supply R1=180ohm R2-3-5=10Kohm 1.3V (50W into 8W) 10K 15Hz - 100kHz 10V/uS 50W into 8W (0.1% THD) 82W into 4W (0.

34p vuongcdt_93 20-08-2012 556 144   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Optimized Multichannel Filter Bank with Flat Frequency Response for Texture Segmentation

11p dauphong20 11-03-2012 33 2   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article An Approach for Synthesis of Modulated M-Channel FIR Filter Banks Utilizing the Frequency-Response Masking Technique

13p dauphong20 10-03-2012 37 2   Download

This diagram illustrates the Physical layer (Layer 1) of the OSI model. The Physical layer is responsible for the ultimate transmission of data over network communications media. It operates with data in the form of bits that are sent from the Physical layer of the sending (source) device and received at the Physical layer of the destination device. Ethernet cabling, Token Ring network technology and SCSI all function at the Physical layer of the OSI model. Hubs and other repeaters are standard network devices that function at the Physical layer.

54p thanhtq00103 08-06-2011 113 19   Download

Frequency of applied signal has effect on response of circuit Plots of effect of frequency on gain and phase.

17p perpan 16-04-2011 87 5   Download

Understand the quantitative relationship between toxicant exposure and induced effects. • Describe frequently encountered toxic effects. • Interpret frequency (normal distribution) and dose response curves. • Understand threshold effects with dosage increase.

7p nguyenvanquan037 07-01-2011 66 5   Download